Hey, Here is my post from MPGH i made a while back.
More addresses later.
Here are a couple Gamertag addresses that i found.
0C1A5CC8 - pregame name
0C1A5D28 - Client 1 pregame name
0C1A3CE8 - Client 2 pregame name
For the last two, you need to set them in pre game lobby, then wait till the...